Improvement in wood-shaping machines



2 SheetsSheet 1. R. RIGI-IARDI. Wood-Shaping Machine. No. 218,196.

Atiist; Inventor $64 M QOWQLM 2 Sheets-Sheet 2.

R. RIGHARDI. Wood-Shaping Machine. No. 218,196. Patented Aug. 5, 1879MlIlllllllllllllllllflllllll I NJFFERS, PQYO-LITHOGRAFHER. WASHINGTON. DC

UNITED STATES PATENT OFFICE.

ROBERT RIOHARDI, OF LOUISIANA, MISSOURI.

IMPROVEMENT IN WOOD-SHAPING MACHINES.

Specification forming part of Letters Patent No. 218,196, dated August5, 1879; application filed March 14, 1879.

To all whom it may concern:

Be it known that I, ROBERT RIOHARDI, of Louisiana, Missouri, have madenew and useful Improvements in Wood-Shaping Machines, of which thefollowing is a full, clear, and exact description, reference being hadto the annexed drawings, making part of this specification, in which-Figure 1 is a view, in perspective, of a machine containing theimprovements; Fig. 2, a plan of the same; Fig. 3, a vertical sectiontaken on the line m :20 of Fig. 2; Fig. 4, a vertical sectiontaken onthe line 3 y of Fig. 2; Figs. 5 and 6, details, being, respectively, aside elevation and a cross-section of the cutter-head and the partsimmediately therewith connected; and Figs. 7 and 8, details, being,respectively, a cross-section and a face view of the pattern-block.

The same letters denote the same parts.

The present inyention is an improvement in that class of shaping-machines wherein a model or pattern is used in conjunction with ablank, the outline of the pattern guiding the cutting-tool to produce aduplicate from the blank.

It has relation especially to the following points: the means forholding and adjusting the pattern and blank; the means for supportingthe cutter and pattern-wheel, and for adjusting these parts,respectively, to the blank and pattern; the means for regulating thedepth of the cut, and the general combination of the various parts ofthe device.

Referring to the drawings, A represents the frame of the machine,consisting of the uprights a a a, united by the cross-bars a a. Brepresents the main shaft, journaled in the uprights at b b b. It isprovided with the pulley C, by which motion is communicated to ,theshaft, the pulley D, by which the motion of the shaft is imparted to thecutting mechanism, and the pulley E, by which motion is imparted to themechanism for moving the cutter-frame to and fro upon the main shaft.

F represents a shaft journaled in the uprights at f f. It serves tosupport the pattern F and the blank F The pattern and block are held,respectively, in chucks f and f that are upon and that can be turnedaround the shaft F, so as to present the pattern and blank at anydesired angle, and at which they.- are fastened by the screws f. Theblank and pattern are held in the chucks by the screws f. The shaft isalso furnished with an arm, f, for rotating the shaft, so as to presentthe blank and pattern to the cutting mechanism, or to lift them awaytherefrom, as desired. A pin, f that can be inserted in any of theperforations f", serves to hold the arm f at the desired position.

G represents what is termed the cutterframe. It supports the cuttingmechanism proper, H, and also the pattern-wheel I. The frame consists,mainly, of the arms g g g g, united by the bars g g. The arms 9 g, attheir lower ends, are attached to the shaft B, and in such manner thatthe frame G may have a rotary movement around the shaft, and also bemoved along the shaft. The pulley D is arranged between two of the armsg g, and is made to he slipped upon the shaft B with the frame G as thelatter is moved longitudinally thereon. pulley D to turn with it. Twoarms, h and i, are attached to a shaft, J, that in turn is journaled inthe arms 9 g at j j.

The cutter H and pattern I are, respectively, journaled in the arms h i.The shaft J is furnished with a pulley, j. Motion is communicated to thecutter by means of belts passing from the pulley D to the pulley j, andfrom the last-named pulley to a pulley, it, that is upon thecutter-shaft W, as shown in Fig. 3.

The arms h i, carrying the cutter and pattern-wheel, are, by properlyrotating the shaft J in its bearings jj, raised or lowered so as tobring the cutter and pattern-wheel, respectively, in contact with, or towithdraw them from, the blank and pattern. The rotation is effected bymeans of a screw, K, engaging in a toothed sector, K, that is fastenedto the shaft J. The screw K is journaled in bearings k k, that are uponthe arm g, and as the screw, by means of the crank k, is turned in onedirection or the other, the cutter and patternwheel are correspondinglyraised or lowered.

The operation of the mechanism as thus far described is as follows: Thepattern and blank being properly adjusted upon the shaft F, and theshaft F being turned so as to properly The shaft B is squared to. causethepresent the pattern and blank, the cutterframe G is moved upon theshaft B, to bring the pattern-wheel and cutter, respectively, oppositethe pattern and blank at that end there of at which it is desired tobegin the shaping, and the arms I: i are raised to bring the wheel andcutter against the pattern and blank. The pattern-wheel follows theoutline of the pattern in the usual manner, causing the cutter to give acorresponding shape to the blank. As the cutting proceeds thecutter-frame is suitably slipped on the main shaft, to carry the wheeland cutter transversely past the pattern and blank, in the customaryway. For this purpose belts L L lead from the pulley E to a series ofpulleys, M M M that are upon a shaft, N, that, m turn, isjournaled inthe uprights at n 21, one, M, of the pulleys being fast and the othersloose.

The shaft N is furnished with a pulley, 0, from which a belt leads to apulley, I, that is upon a screw-shaft, Q. The latteris journaled at q q,and is provided with a traveling nut, B. The latter is connected withthe frame G, and thus the motion of the shaft B causes the frame G to befed past the pattern and blank.

S represents the ordinary shifting-bar, by which the belts L L aresuitably shifted upon the pulleys M M M to change the motion of theframe G, as required.

T represents an arm attached to the frame G, and extended to move alongthe shaft S as the frame G moves, and to encounter stops 1: 21 that areupon the shaft S. This causes the bar S to be shifted at the right timeautomatically, and to effect a reversal of the movement of the frame G.

U represents an arm that is pivoted to the frame G at u, and that at itsouter end, a is perforated to receive a screw, V, and that at its innerend, 11 is slotted and passed over a bar, U, that, in turn, is held inthe uprights a a.

W represents a bracket attached to the frame G at 11:. It is threaded atits outer end, in which the screw V engages. By means of the latter theouter end of the arm U can be raised or lowered. When it is desired tomake a deeper cut, the outer end. a, is drawn upward. This causes theslotted end a to bear upon the bar U, and, in consequence, to draw theframe G toward the blank. By reversing the movement of the screw V theframe G is drawn backward from the blank. The bar U and arm U alsoprevent the cutter from cutting too deeply into the blank.

I claim- 1. The combination of the shaft F, having the chucksff and armf and the uprights a a, having the perforationsf and pinf, substantially as described.

2. The combination of the frame A, shaft B, frame G, arms h 'i, shaft J,screw K, and sector K, substantially as described.

3. The combination of the shaft B, the tilting and sliding frame G,shaft J, arms h i, cutter H, aml pattern-wheel I, substantially asdescribed. 4. The combination of the shaft 15, the tilt mg and slidingframe G, shaft J, arms h 1', cutter H, and pulleys Dj h, substantiallyas described.

5. The combination of the rotating shaft F, shaft B, the tilting andsliding frame G, shaft J, and arms h 1', substantially as described.

6. The combination of the shaft B, frame G, arm U, screw V, bar U, andbracket W, substantially as described.

7. The combination of the shaft 13, frame G, shaft J, arms h 1', screwK, sector K, arm U, bar U, screw V, and bracket W, substantially asdescribed.

ROBERT RICHARDI.

Witnesses 801.. J. BLooH, ABE BLocu.

